C++ unknown syntax error -


so started learning c++ , can't life of me figure out wrong here.

this code in it's entirety. compiler not give me errors, suspect has fact "mixing" integers , strings. tried converting it, way did highly insufficient had 3 times amount of variables, didn't work. need point me in right direction. enter image description here

from top bottom:

get rid of #include "stdafx.h". windows include don't need program.

to read std::in need use operator >> not <<. change

cin << b;

to 

cin >> b;

last not least. assume want write "5 + [whatever value b is] = [result]", right? convert different types string can either use std::ostringstream , insert values there so:

std::ostringstream oss; oss << << " + " << b << " = "; addprinted = oss.str();

and call method str() convert content string or can directly output them std::cout (since think trying achieve)

std::cout << << " + " << b << " = " << ab;

also practice not use using namespace std when posting code somewhere else. in small program may not problem hard deduce whether using e.g. std::string or custom class happens named string well.


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